Connecticut Administrative Code
Title 19 - Public Health and Safety
13-B
Chapter II - ENVIRONMENTAL HEALTH
Water Supply Wells and Springs
Section 19-13-B51e - Precautions

A well under construction shall be protected so that there can be no drainage or surface wash into the well. Workmen employed in such construction shall exercise sanitary precautions in disposal of wastes and handling of construction materials so as to avoid contamination of the well and aquifer. All water used in constructing a well shall be disinfected with fifty milligrams per liter (parts per million) of chlorine in order to protect the well from contamination. No polluted water shall be used in connection with the construction of a well.